Do not overtighten the coil assembly at-
Excessive torque will
stretch the sleeve and core assembly and
raise the solenoid pull-in voltage.
(g) Press the inlet screen (38, fig. 3-10.4) into
the fuel inlet, and screw the valve stem (37) into the
valve body. Install the mounting bracket (2) on the
valve body as shown in figure 3 10.8, and secure
with four screws (1, fig. 3-10.4).
(h) Test the fuel control valve flow rate as
1. Connect the fuel tube (5, fig. 3-10.2) to
the fuel control valve outlet elbow, and tighten the
compression nut (6). Clamp the assembled valve and
fuel tube to a stand or work bench as necessary to
simulate the position the fuel control valve will
assume when it is installed on the heater, and the
heater is installed in a vehicle.
The test must be performed while the
valve is in a position as close as possible
to its position on the installed heater.
Rotating the valve after it has been ad-
justed will alter the amount of head
against which the regulating valve has
been set and can significantly alter the
2. Connect a supply of fuel under a pressure
of 3 to 5 psi to the fuel control valve IN port, and
connect the test leads as shown in figure 3-10.9.
Place a container under the open end of the fuel tube
and apply fuel pressure.